Mixing AA2G and Trehalose Powders into Finished Cream or Serum
Question
Can AA2G and Trehalose powders purchased from the website be mixed together as dry powders and then added directly to a finished cream or serum product, according to the description below?
PRODUCT DETAILS
White powder V90 is a sustainable vitamin-C derivative cosmetic powder. This powder uses Ascorbyl Glucoside which has the advantage of being as effective as conventional Vitamin C. With 90 mg in each capsule, this gives you the equivalent of the Vitamin C of two lemons.*
The powder also uses Trehalose, a naturally occurring carbohydrate contained in mushrooms, yeast, legumes, and seaweed. Blending 10% Trehalose reduces the feeling of skin tightness caused by Vitamin C, leading to smoother skin that maintains moisture.
Answer
Mixing AA2G and Trehalose Powders into Cream or Serum
Mixing Ascorbyl Glucoside (AA-2G) and Trehalose powders directly into a finished cream or serum is generally not recommended. Both ingredients are water-soluble and should be properly dissolved in the water phase during the formulation process.
Here's why and the recommended method:
- Dissolution: Powders need to be fully dissolved to be effective and evenly distributed in the product. Simply stirring them into a finished cream or serum may not achieve complete dissolution, leading to a gritty texture or uneven distribution of the active ingredients.
- Stability of AA-2G: Ascorbyl Glucoside (AA-2G) is most stable within a specific pH range of 6.5-6.8. Mixing it into a finished product without checking and adjusting the pH can cause it to degrade quickly, reducing its effectiveness. The product description for AA-2G recommends dissolving it in water and using a pH meter to adjust the pH accordingly.
- Formulation Integrity: Adding powders to a finished product can disrupt its emulsion (for creams/lotions) or texture (for serums), potentially affecting its stability and shelf life.
Recommended Method:
If you are formulating a product from scratch, dissolve the Ascorbyl Glucoside (AA-2G) and Trehalose powders in the water phase of your formulation according to the recommended usage rates:
- Ascorbyl Glucoside (AA-2G): 2-10%
- Trehalose: 1-3%
Ensure the water temperature is below 50°C when mixing AA-2G. After mixing, check and adjust the final product's pH to the stable range of 6.5-6.8 for AA-2G using an alkali like TEA or Sodium Hydroxide.
If you wish to add these ingredients to an existing base product, it is best to use a base specifically designed to incorporate active ingredients or to create a simple water-based serum by dissolving the powders in distilled water and adjusting the pH, then adding a preservative.
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